coaxial helicopters for
both manned and unmanned shipboard operations.

President John
F. Kennedy was so impressed

after watching

an
"anti-submarine warfare"

(ASW) demonstration

,
he ordered that

production of these vehicles be done on a
much larger scale.

B

y

November 30, 1970, after the U.S. government had invested over $275
million dollars, the ASW program was cancelled,

due funding required for other operations to support
the

Vietnam war.

In
Nov 2003,

YOSHINE debuted

the
world's first "Coaxial Drive System" called a CDS

at the "HeliTech 2003" near Cambridge, UK.

The CDS

was

designed to eliminate
the tail-rotor so that 100% power can be provided for lifting 100% of the
time, making it more easy to hover, and to fly low and
slow, and mostly more affordable.

By 2004,
YOSHINE flew its first "Coaxial Helicopter" built
with
a CDS, powered with twin 25hp engines, remotely piloted
as a
UAV (unmanned air vehicle), confirming Yoshine's goal
to make "Helicopter Flying Easy".

¡@

¡@

In 2005,

BOEING
proposed a "Want to fly to work?"

air vehicle that happened to
be a coaxial

design with a car body.

¡@

In

2008,

a two-seat coaxial EZYCOPTER
demonstrator built with
a YOSHINE
CDS
was

introduced as a

test model.

By June
2009,

a coaxial helicopter prototype was designed and built with an OEM
CDS, debuted at the "Paris Airshow 2009"

by a European company

.

Yes, a coaxial helicopter
like an EZYCOPTER may be designed and developed with a custom CDS by
Yoshine.

EZYCOPTER

eliminates

the need for a tail-rotor, providing 100% lifting
power, 100% of the time.
The
elimination of the tail-rotor will reduce the workload for developing a new
coaxial helicopter.